Numerical Assessment of Highly Efficient Tin-Halide Perovskite Solar Cell

Abstract

Interface science of Perovskite Solar cells (PSCs) has a very crucial role in increasing the efficiency of solar cells. The process of numerical simulation has also helped the solar cell’s efficiency to grow rapidly from 3.8% in 2009 to around 11% in 2010 in such a short period. This was a great achievement at that time and from then it kept on improving. Not only its rapid increase in efficiency attracted the researchers but also its low manufacturing cost and high Voc. In this work, we will discuss the Lead-Free Perovskite Solar Cell (PSC) due to its non-toxic nature. A lot of research has already been done on Perovskite Solar Cell that has led to an increase in its efficiency. Despite the truth that they are toxic and can harm us anyway. The prime motive of producing electricity by using solar cells is to provide a cleaner way to produce electricity but if we are using toxic materials in the manufacturing of the cell, we are getting diverted. That’s why this research paper will focus on the cell having Sn in its absorber layer. The model we are discussing here will have CH3NH3SnI3 (Absorber) as the Perovskite Layer which is non-toxic also the following different layers were also used in simulating our device such as ITO (Indium Tin Oxide) as the front contact, ZnO (Zinc Oxide) as electron transporting layer (ETL), CuI is acting as Hole transport layer (HTL) and we are using Gold (Au) as a back contact. The motive of this research is to make it non-toxic that we have already achieved and to make it highly efficient and the efficiency of the proposed device is 24.72%.